<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script type="text/javascript">
			var a = 0 ;
			for(var i = 1 ; i < 100 ; i++){			
				 if( i % 7 == 0){
					 a = a + i;
				 }
			}
			alert(a);
		</script>
	</head>
	<body>
	</body>
</html>
